The inductance coil is divided into

The inductance coil is divided into primary winding and secondary winding. The electric energy output from the primary coil is stored in the subsequent circuit by the inductor; the electric energy output from the secondary coil provides energy for the circuit chip, and the number of turns of the primary coil is ten times that of the secondary coil. In the design of coil turns, the voltage required by the chip in the subsequent circuit needs to be considered. The inductance of the coil mainly depends on the number of turns, geometry and structural dimensions of the coil, such as the length, diameter and thickness of the coil. Secondly, if there is shielding inside the coil and magnetic core, the inductance of the coil will change. the more turns the coil has, the stronger its power generation capacity, but at the same time, the greater the resistance introduced by the coil itself. In practical design, it is necessary to combine external vibration frequency and subsequent circuit parameters to design.